I have a Dodge Stratus 3.0L R/T when I’m on flat streets runs good, but when I try to run the car in hill the engine shuts down or loss strenght, but if I start the hill from the bottom it goes up good without any problem, except I don't do any stop.
I’m new in this forum, I'd like to share info about my experience with my car (Dodge Stratus 2001 3.0L R/T), also if I can help in any situation I'll glad to help.
I'd like to have help with my today problem.

How many miles? When was your last tune up? Check engine light on? Has it always done this or just start? What transmission do you have? Welcome to the forum.

Sounds like you need to go to a lower gear

The stratus have 139,000 miles, my last tune up was 3 months ago, any light it's on, this start about a month, not sure what trans is, I think is the original trans, but is manual.
thanks for the welcome.
I'm from Nogales Az.

regards.

So what gear are you in when this happens? Have you tried downshifting when going up hills?

On first gear